The new Microsoft Dynamics CRM 2011 Software Development Kit (SDK) v 5.0.5 came out yesterday including the eagerly awaited CRM 2011 development toolkit (in beta version)!
The toolkit can be found here http://www.microsoft.com/download/en/details.aspx?id=24004
The Developer Toolkit is a set of Microsoft Visual Studio 2010 integration tools designed to accelerate the development of custom code for Microsoft Dynamics CRM 2011 and CRM Online. The toolkit supports the creation and deployment of Plug-ins, custom workflows and CRM 2011 web resources and developers can write all of their code from within Visual Studio and deploy them to the Microsoft Dynamics CRM server.
The toolkit also allows for a new Visual Studio solution type called CRM Package, which contains all of the plugins, workflow assemblies and web resources to be deployed as well as their deployment settings, meaning that there is no need to register via the Plugin Registration tool as all of the components can be deployed straight from Visual Studio!